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[/] [zipcpu/] [trunk/] [doc/] - Rev 43

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39 Here's the documentation update to support the pipelined read/writes of
the bus from the CPU, as well as the test file that proved they worked.
dgisselq 2515d 18h /zipcpu/trunk/doc/
37 Fixed some minor spelling errors. dgisselq 2524d 11h /zipcpu/trunk/doc/
36 *Lots* of changes to increase processing speed and remove pipeline stalls.

Removed the useless flash cache, replacing it with a proper DMA controller.

"make test" in the main directory now runs a test program in Verilator and
reports on the results.
dgisselq 2525d 00h /zipcpu/trunk/doc/
35 I updated the system diagram to reflect the new version that has a direct
memory access controller, rather than the (useless) manual cache.
dgisselq 2541d 14h /zipcpu/trunk/doc/
33 Finally finished a first draft of the full specification! dgisselq 2553d 17h /zipcpu/trunk/doc/
32 Updated the document to match the most recent changes to the CPU. Specifically,
these include the re-instatement of the full SUB command with immediate offset,
and ... others I cannot remember.

The new document also describes what conditions create pipeline stalls,
together with how many cycles each stall condition will create.
dgisselq 2554d 01h /zipcpu/trunk/doc/
24 Lots more changes to the spec. It's still not done, but it is more complete
than before.
dgisselq 2557d 02h /zipcpu/trunk/doc/
23 Oops -- left some portions of the RTC Clock spec in with the ZIP CPU spec.
These were quickly removed.
dgisselq 2558d 21h /zipcpu/trunk/doc/
22 dgisselq 2558d 21h /zipcpu/trunk/doc/
21 This update adds an incomplete version of the specification for the chip.
I ned to come back to this and do a lot more writing, but it is a start.
dgisselq 2558d 21h /zipcpu/trunk/doc/
10 Here's the watchdog timer code, as well as some pictures of the register
set.
dgisselq 2579d 14h /zipcpu/trunk/doc/
8 Fixed the rotate left instruction to work in the zasm parser, and to be
properly referenced in the simulator. The instruction set documentation was
also adjusted to reflect what the CPU actually does.
dgisselq 2579d 21h /zipcpu/trunk/doc/
7 Here's the iset.html file that was at one time in the gfx directory, but
which could not be moved due to a bad gateway error ... (Grrr).
dgisselq 2579d 22h /zipcpu/trunk/doc/
6 Trying to move iset.html from gfx directory. dgisselq 2579d 22h /zipcpu/trunk/doc/
5 Updated colors in the graphics. dgisselq 2579d 22h /zipcpu/trunk/doc/
2 An initial load. No promises of what works or not, but this is where the
project is at.
dgisselq 2580d 15h /zipcpu/trunk/doc/

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